18 May 2009 Factors affecting the transmission and stability in complex fluorides in VUV spectral region
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Transmittance and radiation induced absorbance in VUV-UV-visible spectral region were measured in several binary and complex fluoride single crystals at room temperature. Influence of the intentional doping and material stochiometry is demonstrated. X-ray induced coloration and degradation of transmittance characteristics are observed and discussed in terms of creation of various electron (F-like) and hole (VK- and H-like) centers and in terms of near band-edge transitions arising due to imperfect periodicity of the lattice in a general sense. It is shown that VUV characteristics cannot be derived or predicted from those observed in UV-visible spectral region.
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Martin Nikl, Martin Nikl, Hiroki Sato, Hiroki Sato, Eva Mihokova, Eva Mihokova, Toshiro Mabuchi, Toshiro Mabuchi, Teruhiko Nawata, Teruhiko Nawata, A. Yoshikawa, A. Yoshikawa, Jan Pejchal, Jan Pejchal, Naoriaki Kawaguchi, Naoriaki Kawaguchi, Sumito Ishizu, Sumito Ishizu, Kentaro Fukuda, Kentaro Fukuda, Toshihisa Suyama, Toshihisa Suyama, "Factors affecting the transmission and stability in complex fluorides in VUV spectral region", Proc. SPIE 7361, Damage to VUV, EUV, and X-Ray Optics II, 73610S (18 May 2009); doi: 10.1117/12.822558; https://doi.org/10.1117/12.822558


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